A circular, single or multipiece item, metallic or nonmetallic in composition, designed to be fitted in a circumferential groove in a piston and to spring outward against the cylinder wall to function as a seal or wiper. It is supplied in various cross-sectional shapes and is cut through at one point to allow for installation in the piston ring groove. It may include an expander. Excludes packing, preformed; retainer, oil seal; retainer, packing; ring, retaining; ring wiper; and seal ring, metal.
Classification: Parts for steam turbines
NSN 5998-01-066-2996
NSN 6130-01-583-9874
NSN 2925-01-633-4048
NSN 6645-01-465-3235
NSN 6610-01-257-5808
NSN 6110-01-256-3405
NSN 6150-01-200-7935
NSN 6620-01-144-2488
NSN 5965-00-300-8055
NSN 5998-01-031-5072
NSN 5905-01-005-4385
NSN 6320-01-369-5014